8b 



DYNAMIC METEOROLOGY AND HYDROGRAPHY. 



Table 71. Virtual temperature of saturated air for given pressures. 



Example : 



Pressure 871 m-bars, temperature 14.2. Table 71U gives 2.0. 



63 per cent, of 2.0 gives 1.3 



Virtual temperature 15. 5 for air of 14. 2 C. and 63 per cent relative humidity at the 



sure of S71 m-bars. 



pres- 



